Direct recycling and remanufacturing of anode scraps

Yaocai Bai; Mengya Li; Charl J. Jafta; Qiang Dai; Rachid Essehli; Bryant J. Polzin; Ilias Belharouak

doi:10.1016/j.susmat.2022.e00542

Direct recycling and remanufacturing of anode scraps

Yaocai Bai, Mengya Li, Charl J. Jafta, Qiang Dai, Rachid Essehli, Bryant J. Polzin, Ilias Belharouak

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

With the rapid expansion of Li-ion battery production, significant amounts of electrode scraps that need to be recycled are being produced during cell manufacturing. Anode scrap that comprises critical materials such as graphite and valuable Cu should be recycled and reintegrated into the battery supply chain. This study reports a simple yet efficient water-based recovery process for delaminating anode films from Cu foils through the intercalation of water between the hydrophilic Cu foil and hydrophobic anode coating. Because of the absence of harsh chemicals, the recovered anode films and Cu foils are battery grade and free of damage in terms of physical and chemical properties. This study also demonstrates the reprocessing of those anode films into a new anode that exhibits electrochemical performance similar to that of the pristine anode. This environmentally friendly and cost-effective separation technique allows battery manufacturers to directly recycle and reuse their electrode scraps safely and effectively on-site.

Original language	English
Article number	e00542
Journal	Sustainable Materials and Technologies
Volume	35
DOIs	https://doi.org/10.1016/j.susmat.2022.e00542
State	Published - Apr 2023

Funding

This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the US Department of Energy under contract DE-AC05-00OR22725, was sponsored by the Office of Energy Efficiency and Renewable Energy Vehicle Technologies Office (Director: David Howell, Program Manager: Samuel Gillard). This work was done in collaboration with the ReCell Center at Argonne National Laboratory. Characterization was conducted at the Center for Nanophase Materials Sciences, which is a US Department of Energy Office of Science User Facility. This research at Oak Ridge National Laboratory , managed by UT Battelle, LLC, for the US Department of Energy under contract DE-AC05-00OR22725 , was sponsored by the Office of Energy Efficiency and Renewable Energy Vehicle Technologies Office (Director: David Howell, Program Manager: Samuel Gillard). This work was done in collaboration with the ReCell Center at Argonne National Laboratory. Characterization was conducted at the Center for Nanophase Materials Sciences, which is a US Department of Energy Office of Science User Facility.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
Argonne National Laboratory
Oak Ridge National Laboratory
Wind Energy Technologies Office
UT-Battelle

Keywords

Anode
Direct recycling
Graphite
Lithium-ion batteries
Manufacturing scrap

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.susmat.2022.e00542

Cite this

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title = "Direct recycling and remanufacturing of anode scraps",

abstract = "With the rapid expansion of Li-ion battery production, significant amounts of electrode scraps that need to be recycled are being produced during cell manufacturing. Anode scrap that comprises critical materials such as graphite and valuable Cu should be recycled and reintegrated into the battery supply chain. This study reports a simple yet efficient water-based recovery process for delaminating anode films from Cu foils through the intercalation of water between the hydrophilic Cu foil and hydrophobic anode coating. Because of the absence of harsh chemicals, the recovered anode films and Cu foils are battery grade and free of damage in terms of physical and chemical properties. This study also demonstrates the reprocessing of those anode films into a new anode that exhibits electrochemical performance similar to that of the pristine anode. This environmentally friendly and cost-effective separation technique allows battery manufacturers to directly recycle and reuse their electrode scraps safely and effectively on-site.",

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author = "Yaocai Bai and Mengya Li and Jafta, {Charl J.} and Qiang Dai and Rachid Essehli and Polzin, {Bryant J.} and Ilias Belharouak",

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AU - Bai, Yaocai

AU - Li, Mengya

AU - Jafta, Charl J.

AU - Dai, Qiang

AU - Essehli, Rachid

AU - Polzin, Bryant J.

AU - Belharouak, Ilias

PY - 2023/4

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N2 - With the rapid expansion of Li-ion battery production, significant amounts of electrode scraps that need to be recycled are being produced during cell manufacturing. Anode scrap that comprises critical materials such as graphite and valuable Cu should be recycled and reintegrated into the battery supply chain. This study reports a simple yet efficient water-based recovery process for delaminating anode films from Cu foils through the intercalation of water between the hydrophilic Cu foil and hydrophobic anode coating. Because of the absence of harsh chemicals, the recovered anode films and Cu foils are battery grade and free of damage in terms of physical and chemical properties. This study also demonstrates the reprocessing of those anode films into a new anode that exhibits electrochemical performance similar to that of the pristine anode. This environmentally friendly and cost-effective separation technique allows battery manufacturers to directly recycle and reuse their electrode scraps safely and effectively on-site.

AB - With the rapid expansion of Li-ion battery production, significant amounts of electrode scraps that need to be recycled are being produced during cell manufacturing. Anode scrap that comprises critical materials such as graphite and valuable Cu should be recycled and reintegrated into the battery supply chain. This study reports a simple yet efficient water-based recovery process for delaminating anode films from Cu foils through the intercalation of water between the hydrophilic Cu foil and hydrophobic anode coating. Because of the absence of harsh chemicals, the recovered anode films and Cu foils are battery grade and free of damage in terms of physical and chemical properties. This study also demonstrates the reprocessing of those anode films into a new anode that exhibits electrochemical performance similar to that of the pristine anode. This environmentally friendly and cost-effective separation technique allows battery manufacturers to directly recycle and reuse their electrode scraps safely and effectively on-site.

KW - Anode

KW - Direct recycling

KW - Graphite

KW - Lithium-ion batteries

KW - Manufacturing scrap

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Direct recycling and remanufacturing of anode scraps

Abstract

Funding

Keywords

UN SDGs

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